Falsh meter + 580 EX II + ste 2 = problem

Started Jun 22, 2008 | Discussions thread
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ScratchDisk Veteran Member • Posts: 3,256
Re: That is

Hi,
You write:-

"I would hope that this preflash is so weak that it would not register on a light meter very much to matter..."

That was not my experience. 'Though weak, the pre-flash triggered my Polaris flash meter 'early', so the main/taking flash was not registered by the meter at all.

To avoid pre-flash all Ex units need to be in 'M', .. AND not have 'master' showing on their screens.
Cheers,
Donald

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